Abigail, 20, a medical student, died after being hit by Singh's car on a crossing in Birmingham.

Singh admitted dangerous driving. He is likely to serve just half his sentence as he has already spent five months in jail on remand. He could be free by August although his case is now being re-examined after the sentence sparked national outrage.

Mr Walker, of Washington, whose son Wayne was also killed by a hit-and-run driver, said: "It's disgusting. The law is a complete waste of time."

The court case in Birmingham came only days after Mr Walker, of Springwell Village, was told David Graham, the driver who killed Wayne, had been freed after serving just half of a four-year sentence.

Mr Walker, 63, said: "It seems these kind of people can get away with it. They should be charged with manslaughter and serve their full sentence.

"It's disgraceful the driver in this case could be free after only four months. The man who killed my son has spent less then three years in prison.

"I feel for this other family and I know exactly what they are going through.

"I also know that, like us, they will get no help whatsoever from the system."

Wayne, 33, a father-of-one, was exercising his pony on the A182 Washington Highway near his home in Springwell Village, when he was killed in April 2003.

Graham fled the scene but handed himself in four days later after Wayne's partner, Deborah Jennings, mother of his son, Nathan, five, and Mr Walker made a public appeal to him to give himself up.

Graham, then 27, of Sunderland, was jailed for four years after admitting causing death by dangerous driving, driving without insurance, without a licence, failing to stop and failing to report an accident.

In October last year the Government introduced new proposals in the Road Safety Bill to charge killer drivers with manslaughter, which carries a maximum life sentence. The Bill was a success for the Chronicle's Justice for Rebecca Campaign to raise jail terms for killer drivers.

Rebecca Sawyer, nine, was killed and her sister Kirsty, one, and dad Steven seriously injured in a New Year's Eve accident in Ashington in 2002.